Clinicopathological characteristics and surgical outcomes of divided nevus of the eyelids: a decade's experience on 73 cases.

Currently, there is a lack of comprehensive data regarding clinicopathologic characteristics and surgical treatment of divided nevus of the eyelids. Here clinicopathologic features and reconstructive procedures performed on 73 patients were described. We showed that the lesion was randomly located on both eyes with a predominant incidence in females. Affected regions included the following: eyelid only (n = 40, 54.8%); medial canthus involvement (n = 4, 5.5%); medial canthus, caruncle, and bulbar conjunctiva involvement (n = 5, 6.8%); lateral canthus involvement (n = 18, 24.7%); full eyelids (n = 6, 8.2%); and cheek extension (n = 9, 12.3%). Lesions presented as a pigmented macule (n = 18, 24.7%) or mass (n = 55, 75.3%). Ptosis was present in 26 (35.6%) cases leading to visual field defects (n = 9, 12.3%). The puncta were covered in 13 (17.8%) cases. Overall, surgical results were satisfactory. Pathologically, lesions were either intradermal (n = 40, 54.8%), junctional (n = 15, 20.5%), or compound (n = 18, 24.7%). Because of the lack of systemic data regarding the rare entity of divided nevus of the eyelids, this study improves our understanding of this lesion, and it should be treated with individualized reconstructive procedures. Incorporation of pediatric patient population in the future will further extend our knowledge in dealing with this disorder.